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为了明晰紫金山栓皮栎枫香混交林植物多样性,主要从乔木层各物种的重要值、优势种群年龄结构以及物种多样性指数、物种丰富度指数、物种均匀度指数等方面进行了调查与分析。结果表明,在紫金山栓皮栎枫香混交林中,共有植物59科93属102种。乔木层中栓皮栎、枫香和马尾松在群落中占据优势地位,三者重要值之和高达77.88%。其中栓皮栎近似于稳定型种群,枫香属于典型的增长型种群,马尾松属于典型的衰退型种群,在未来的一段时间内,栓皮栎和枫香将继续成为该地区的优势种,而马尾松则会被更新能力更强的物种所取代。群落中灌木层的Simpson指数和Shannon-Wiener指数均最大,分别为0.948和3.370;其次是草本层,分别为0.894和2.480;乔木层最小,分别为0.717和1.690。物种丰富度指数乔木层和草本层相近,分别为24和22;灌木层最大,值为68。Pielou均匀度指数灌木层和草本层相近,分别为0.799和0.802;乔木层最小,值为0.532。
In order to clarify the plant diversity of the mixed forest of Cimicum and Vulgaris-mixed forest in Zijin Mountain, the author mainly investigated and analyzed the important values of species, the age structure of dominant species, species diversity index, species richness index and species evenness index . The results showed that there were 102 species belonging to 93 genera and 59 families in the mixed forest of Q. variabilis. Quercus variabilis, sweetgum and masson pine dominated the community, with the sum of the three important values reaching 77.88%. Cork oak is similar to the stable population, Liquidambar formosana belongs to the typical growth population, Masson pine belongs to the typical recession-type population, in the coming period, the Quercus variabilis and Liquidambar formosana will continue to be the dominant species in the region, Pine will be replaced by more capable species. The Simpson index and Shannon-Wiener index of the shrub layer in the community are the largest, 0.948 and 3.370 respectively; followed by the herb layer 0.894 and 2.480, respectively; the minimum arbor layer, respectively 0.717 and 1.690. The species richness index was similar to that of the herb layer, which was 24 and 22, respectively. The shrub layer was the largest with a value of 68. Pielou evenness index shrub layer and herb layer were similar, respectively 0.799 and 0.802; arbor layer minimum value of 0.532.